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Testing whether a value is odd or even
...cided to create simple isEven and isOdd function with a very simple algorithm:
22 Answers
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Choosing a stand-alone full-text search server: Sphinx or SOLR? [closed]
I'm looking for a stand-alone full-text search server with the following properties:
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Can (domain name) subdomains have an underscore “_” in it?
Can subdomains (domain names) have underscore _ in them?
11 Answers
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is_file or file_exists in PHP
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is_file() will return false if the given path points to a directory. file_exists() will return true if the given path points to a valid file or directory. So it would depend entirely on your needs. If you want to know specifically if it's a file or not, use is_file(). Otherwise, use file_...
Why is “if not someobj:” better than “if someobj == None:” in Python?
...is not already one. Roughly, we are asking the object : are you meaningful or not ? This is done using the following algorithm :
If the object has a __nonzero__ special method (as do numeric built-ins, int and float), it calls this method. It must either return a bool value which is then directly ...
MySQL WHERE: how to write “!=” or “not equals”?
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The != operator most certainly does exist! It is an alias for the standard <> operator.
Perhaps your fields are not actually empty strings, but instead NULL?
To compare to NULL you can use IS NULL or IS NOT NULL or the null safe e...
Forward function declarations in a Bash or a Shell script?
Is there such a thing in bash or at least something similar (work-around) like forward declarations, well known in C / C++, for instance?
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Regex to match string containing two names in any order
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Would somebody mind explaining in a bit more detail how this example works?
– bjmc
Jul 7 '14 at 21:37
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What are the differences and similarities between ffmpeg, libav, and avconv?
...ndably a source of confusion. Older Ubuntu versions used Libav which is a fork of the FFmpeg project. FFmpeg returned in Ubuntu 15.04 "Vivid Vervet".
The fork was basically a non-amicable result of conflicting personalities and development styles within the FFmpeg community. It is worth noting that...
Using arrays or std::vectors in C++, what's the performance gap?
In our C++ course they suggest not to use C++ arrays on new projects anymore. As far as I know Stroustroup himself suggests not to use arrays. But are there significant performance differences?
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